| 大倾角煤层开采矿压显现规律数值模拟 |
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| 引用本文： | 石建军,师皓宇,刘宏伟.大倾角煤层开采矿压显现规律数值模拟[J].华北科技学院学报,2012,9(3):50-54. |
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| 作者姓名： | 石建军 师皓宇 刘宏伟 |
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| 作者单位： | 1. 华北科技学院安全工程学院,北京东燕郊,101601
2. 威信云投粤电煤炭有限公司,云南昭通,657900 |
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| 基金项目： | 中央高校基本科研业务费资助项目（AQ1202B） |
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| 摘 要： | 基于云南观音山煤矿已有的煤层地质条件,采用数值模拟软件FLAC3D,建立了大倾角软顶底板煤层数值模型,模拟分析了工作面回采时煤壁内应力分布、顶板下沉及底板鼓起情况。根据数值模拟结果分析,其工作面的初次来压步距在20m左右。研究了工作面推至100m时,沿工作面走向和倾向的垂直应力和变形分布规律。对现场矿山压力控制具有一定参考价值。
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| 关 键 词： | 大倾角 数值模拟 矿压显现 应力与变形 |
The numerical simulation of the behavior law of mine pressure in Lean Coal Seam |
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| SHI Jianjun,SHI haoyu,LIU Hongwei.The numerical simulation of the behavior law of mine pressure in Lean Coal Seam[J].Journal of North China Institute of Science and Technology,2012,9(3):50-54. |
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| Authors: | SHI Jianjun SHI haoyu LIU Hongwei |
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| Institution: | 1. Safety Engineering College, North China University of Science and Technology, Beijing-east Yanjiao 101601 ; 2. Weixin Yunnan Electric Capital Ltd. , Zhaotong Yunnan 657900) |
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| Abstract: | Based on the condition of Guan Yin Shan Mine. We built a numerical model for lean and soft roof and floor coal seam by using the software FLAC3D to numerically study the stressdistribution and roof and floor muster. According to the simulation results that the first weighting interval of the coal face is about 20m. We study the vertical deformation and stress distribution a- long the coal face toward and inclined when the working face impelling to 100m,. On the mining pressure control has a certain reference value. |
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| Keywords: | bigangle numerical simulation behavior law of mine pressure stress and deformation |
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